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Larger of the two lymphatic ducts receiving lymph from all but the right head and neck region
Large collections of bean-shaped structures in the inguinal, axillary, and cervical regions
Same three tunics as veins; second-smallest lymph vessels tissue cells and blood capillaries in loose connective tissues; smallest vessels
Lymphatic collecting vessels
A type of loose connective tissue called reticular connective tissue; dominates all lymphoid organs except thymus
Bean-shaped structure surrounded by a dense fibrous capsule with fibrous strands that divide it into compartments
Small lymphoid tissues found in digestive and respiratory tracts
Mucosa-associated lymphatic tissue (MALT)
Protects the digestive and respiratory tracts from never-ending onslaughts of foreign matter entering mucosa lined cavities
Destroy bacteria in appendix; generate "memory" lymphocytes for long-term memory in intestine
Provides a large, blood-filled site for lymphocyte proliferation and immune surveillance and response; cleanses the blood
Provides a proliferation site for lymphocytes and furnishes surveillance vantage point for lymphocytes and macrophages
Distinct bean-shaped structures that "filter" lymph fluid as it is moved toward the circulatory system
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